Wheel for track

A wheel and rail technology, applied in the field of rail wheels, can solve the problems of only being used in two-axle bogies and not being widely used, and achieve the effects of reducing derailment coefficient, improving service life and huge economic benefits.

Inactive Publication Date: 2009-05-27
DATONG ELECTRIC LOCOMOTIVE OF NCR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the wheelbase of the three-axle bogie is long and the passing curve radius is large, while the wheelbase of the two-axle bogie is short and the passing curve radius is small, the bogie transverse connection device can only be used on the two-axle bogie. Cannot be used on three-axle bogies
In practice, only a few electric locomotives have been used, and have not been widely used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0032] Please see first Figure 4 , which is a schematic diagram of a track wheel with a rotating rim according to the present invention. The track wheel with rotating rim of the present invention includes three parts, one part is the wheel body 1 , the other part is the rim 2 , and the third part is the rib 3 . The outer circumference of the wheel body 1 forms a tread 11 in contact with the track, and one side of the wheel body 1 is provided with a rim 2 whose outer diameter is larger than that of the tread 11. In this embodiment, the wheel The rim 2 is arranged on the inner side of the wheel body 1, wherein the rim 2 and the wheel body 1 are of a split structure, and the rim 2 is detachably and rotatably arranged on the outer circumference of the wheel body 1. In this embodiment, a reduced-diameter portion 12 with a diameter smaller than that of the tread surface 11 is provided at the inner end of the wheel body 1 , and the wheel rim 2 is rotatably sleeved on the reduced-di...

Embodiment approach 2

[0043] When the hardness of the material of the rim 2 is lower than that of the wheel body 1, in order to reduce the wear between the contact surface of the rim 2 and the wheel body 1, in addition to adopting the above-mentioned embodiment in which rolling elements 4 are arranged therebetween, as shown in Figure 10 As shown, a wear-resistant gasket 21 can also be provided at least between the wheel rim 2 and the wheel body 1 , for example, a nylon gasket can be provided to improve the wear-resistant performance of the wheel rim 2 . Nylon gaskets can also be arranged between the wheel rim 2 and the rib 3 to further improve the wear resistance between the wheel rim and the rib.

[0044] Other structures, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

Embodiment approach 3

[0046] In this embodiment, a wear-resistant coating (not shown) is provided on the side of the wheel rim 2 at least facing the wheel body 1. In order to improve the overall wear resistance of the wheel rim 2, the side facing the wheel body 1 can be Both sides of the wheel body 1 and the rib 3 are provided with wear-resistant coatings. The wear-resistant coating can be, for example, a composite layer or a coating layer. For example, a tungsten carbide layer or chrome plating can be applied on the rim 2 to strengthen the surface hardness of the rim 2 and improve wear resistance. And the wear-resistant coating can also be arranged on the wheel body facing the side of the rim. Compared with the above-mentioned arrangement of wear-resistant gaskets, this embodiment reduces the number of parts and facilitates assembly.

[0047] Other structures, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

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PUM

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Abstract

The invention relates to a track-used wheel. The track-used wheel has a wheel body, and the periphery of the wheel body forms a tread in contact with the track. One side of the wheel body is provided with a flange with the outer diameter larger than that of the tread, wherein, the flange and the wheel body are split structures, and the flange can be detachably and rotatably arranged on the periphery of the wheel body; a blocking edge is positioned outside the wheel body and the flange, and fixed on the wheel body by a fixture. The track-used wheel is provided with a rotary flange, and the flange and the wheel body are the split structures, thus overcoming the disadvantages of the known technology, greatly improving the service life of the whole wheel, lowering the use and maintenance cost, and having huge economic benefit. The track-used wheel has simple structure and wide application range, and can be applied to motor cars, trail cars and the like which run on tracks.

Description

technical field [0001] The invention relates to a wheel for rails, in particular to a wheel for rails with a separate structure for the wheel rim and the tread. Background technique [0002] In the prior art, the rim portion (tread and rim) of the rail wheel is a monolithic structure. When the wheel is running on a curve or in a straight line, the wheel tread is in contact with the top surface of the track and performs a rolling motion relative to the top surface of the track, while the rim is located on the side of the track, because the rim Larger than the diameter of the tread, the rim travels a straight line longer than the tread per revolution. That is, when the wheel is in rolling motion, when the rim is in contact with the side surface of the track, it must slide relative to the track to cause rim wear. When the wheel rolls on the track, the tread is pure rolling, while the rim and the side of the track will slide relative to each other, so the wear of the rim is mu...

Claims

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Application Information

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IPC IPC(8): B60B17/00
Inventor 李维忠王彦刘荣彭永明黄猛张委袖
Owner DATONG ELECTRIC LOCOMOTIVE OF NCR
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